Improvement in composition vehicles for paint



NITED STATES PATENT HENRY G. OROWELL, OF NEW LONDON, CONNECTICUT.

Specification forming part of Letters Patent No. 192,056, dated J one19, 1877; application filed October 4, 1876.

.To all whom it may concern Be it known that I, HENRY U. ORoWELL, of NewLondon, in the county of New London and State of Connecticut, haveinvented an Improvement in Oleaginous Compounds for Lubrication andPaint Vehicles; and I do hereby declare that the following is a full,clear, and exact description of the same.

My invention has for its object the production of a solution and itsadmixture with oils and other liquid hydrocarbons, which is much cheaperthan oils in general, and which may be advantageously added to oils ofeither vegetable or animal origin or liquid hydrocarbons, the resultingmixtures or compounds being more valuable for certain purposes than thesaid oils or hydrocarbons in a pure state, among which purposes may benamed lubrication and the use of said mixtures as a vehicle for paintswhen said mixtures are prepared from siccative oils.

When the said solution is added to animal or vegetable oils, or to theliquid mineral hydrocarbons, a permanent liquid is obtained denser thanthe oils employed, having a strawyellow color, the shade varyingsomewhat with the variety of oil employed and the propor tion of thesolution added. The products of such admixture have the followingvaluable industrial v qualities, which have been proved by a series ofthorough experiments:

In lubrication the said product of oil admixed with my solution reducesthe coeificieut of friction between rubbi ug or sliding surfacessomewhat more than the unmixed oil, audit lasts longer, bulk for bulk,than such unmixed oil. It is, therefore, industrially more vahr able,bulk for bulk, than either pure sperm or lard oil or the so-calledlubricating-oils of mineral origin. a

The admixture of my solution with linseedoil forms a vehicle for paintswhich, having been thoroughly tested by practical painters, proves towork easier under the brush than pure linseed-oil, the covering power ofwhich is one-fourth (9;) greater, bulk for bulk, than that of theunmixed oil, and which dries as readily and produces as durable acoating as linseed-oil used in the ordinary manner.

My solution is made in the manner and in about the proportions whichfollow: I take of salt of tartar (pure carbonate ot potash) two and one--halt' (2%) ounces; of freshlyslaked (caustic) lime, two (2) pounds; ofcarbonate of magnesia, three and one half (3%) ounces; and of water,forty five (45) gallons. I dissolve the solid ingredients in the water,to make a clear solution.

The solution prepared may be mixed with oils' in the maximum proportionof an equal quantity of the solution (by measure) to any given quantityof oil, and in such proportion the product of the admixture will possessthe physical qualities hereinbet'ore enumerated. But a smallerproportion of the solution may be used, and I do not confine n'iyselt'to the exact proportion in which the said solution is admixed with anyparticular oil or hydrocarbon, as the same may be varied somewhatwithout materially affecting the resulting product. And while Ihave'given the proportions of the ingredients in the solution which Ihave so far found to operate to the best advantage, 1 do not limitmyself to the exact proportions named, as they may be varied some whatwithout materially affecting the result.

Iclaim- A composition of matter for admixture with vegetable or animaloils or liquid hydrocarbons, for lubricating purposes or as a vehiclefor paint, consisting of salts of tartar, caustic lime, carbonate ofmagnesia, and water, substantially as set forth.

HENRY (l. OROWELL.

Witnesses:

REUBEN LORD, Jr., EDWARD T. BROWN.

FFIGE.

